Cement-mixer.



W. A. COOK & J. DUSHANE, CEMENT MIXER.

APPLIOATION IILFEID JULY 12. 1909.

952,606, Patented Mar. 22, 1910.

lj g'i- 12 States, residing UNITED STATES PATENT OFFICE.

WILLIAM A. coon; A'ND mines DUSHANE, of sour BEND, INDIANA.

CEMENT-MIXER.

Specification of Letters Iat ent.

Application filed July 12, 1909. Serial No. 507,107.

To all whomit may concern:

Be it known that we, WILLIAM A. CooK and J nts DUs ANE, citizens of the United at South 'Bend, in the county of St. Joseph and State of Indiana,

have invented certain new and useful Im- .provements in Cement Mixers, of which the following is a specification.

Tll' lS nvention relates to certain new and useful improvements in cement mixers of that class in WlllCh lS provided a mixing receptacle or drummounted'for rotation with-- in'a suitable support and also mounted for tilting :motion to dischargethe contents.

The present invention has for itsobjects among others to providean improved and simplifiedconstruction embodying a yoke -any position ing'over on 2 R.

.tlal Z the-' drum when loading,

chargethe material when the, drum is turned with which the drum has the rollers or-front bearing of the drum.

At the same time, it controls the drum. in

whether for loading or turnthe trunnions to discharge the ontents of the drum. This is very essenas the drumis kept continually revolvno matter what its position on the horizontal axis or whether loaded or um A further .object means within the drum to'assist in working the materialback into- .and' aiding to disover. into a. discharge position. y

We aim. further at improvements int-he details of construction whereby better re-v sults are attained-and the device rendered "the front end ofthe drum 'tioni Fig. 3 is a perspective view of the cap less liable. to get out ot'order, but, atzthe same time, easily repaired and economical in its construction.

Other objects and advantages of the in vention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claims.

' The invention is olearly illustrated in the accompanying drawings; which, with the Figure'l is a. plan with aportion of the drum broken away 'and parts shown III-S601 tion. Fig. 2 is an end elevation looking. at

of the spherical bearing removed. Fig. 41

is a perspective View of onefof the corner I V i p a ball and socket connection, designed to act as a compencylindrical lug is to provide eflicient so constructed as form with parts in sec;

Patented 111M322, i910.

' brackets and, its roller. Fig. 5 is a per I spectlve view of one of the mixing 'vanes' removed.

Like numerals ofreference indicate like parts throughout the'several views. Referring to the drawings, 1 designates a portion of the supporting frame WlHCll may be of any of the well-known or suitable forms of construction, ings for the 'trunnions of the'drum 4 is the drum openat one end through the truncatedcone 5 and closed at its other end by suitable means, as aspherical member or 7 remova'bly reportion 6 having a head tamed thereon'by suitable means, as the bolts or the'like 8. Extending from this removable'head or .cap piece 7 is a stem .9 terminating in a" ball 10 which rests and lias'a bearing ia correspondingly shaped portion 11 of the, yoke 12. This ball is held in place and readily-accessible 'by removal of a cap 13 having lugs 14' with openings. 15 'for the passageof its securing means. This cap is provided with the substantially semi- 16 to embrace the stem 9 which carries the ball, as will be readily This lug 16 does not constitute a hearing but is extended. over the stem as a smeld for the same to keep ofi'the sand. It does 'not fit. snugly to the stem. This yoke. is

rovided with trunnions l7 and 18 mounted 1n the bearings 2 .on the' standards or upright portii IS ofthe 'frame, the trunnion .18 being hollow, as seen in Fig. 1. through whiohpasses .a shaft. 19, as seen in Fig. 1. On the outer end of this shaft is a member 20 which may be either a belt'pulley or a toothed wheel to which motion isgiven by proper connection with some su table. source of power,

not'show'n. Upon the inner end 2 being suitable bear understood upon reference to Figs. 1 and 3.

of this shaft is a pinion 21 which meshes Fig. 1. which is with a rack 22, as seen in dis carried by the drum; said pinion being iposed within the yoke and in direct engagewhich I latter. is, as shown in Fig. 1, secured to the outside of the drum near its-conical open end.

ment with said rack,

-The-fron t end of the drum is supported on rollers 23 mounted to revolve freely in which are, preferthe corner brckets 2 to receive the ably, channele as seen at 25',

right angled corner portions of a frame 26. as seen in Fig. 2,'to which the corner brack etsare bolted by suitable means, as bolts or the, like 27, as' seen clearlyat-the upper left-hand corner of liig. 2. The side members of this frame are secured tothe front.

' ends of the yoke 12 in any suitable manner,

its end bearing, while I p a minimumpower and as by bolts or the like 28, as seen. best in Fig. 1, by which'means the yoke carries the entireload of the druin'on the two bear-. ings, the ball 10 at one end and the-rollers 23 at the other. By the employment of this all, especially in connection with the hearing at the front end, We ,areenabledto compensate for all irregularities in the motions of the drum, regardless of the cause of suTch irregularities, Whether it be due .to wear, lack of perfect rotundity of the drum or proper centering of the front bearing. on the drum. The ball forms a sort of universaljoint and by reason of its removable cap and'the removable head to the drum carrying said ball, the parts are readily-disassembled for repairs or inspection. This constrnctionalso provides economy in the first cost of the device. j

To theinner surface of the drum are secured a plurality of vanes 29, one of which is seen detached in Fig; 5. These vanes are designed to extend across the drum parallel with its axis but are given reverse-bends, as'seen at 30 and 31, in Fig. 5, at the ends. The effect of these bends is to work the material back into the drum when loading the same, but they will also tend to discharge the material when the drum is turned over into a discharge position.

It is to be observed that the mixer or drum is openat one end and controlled by it is freely supported near its front end. This gives a sort of balanced" drum which may be revolved with yet most satisfactory results attained. I

Modifications in detail may he resorted to without departing from the spirit of the invention or sacrificing any of its advantages. 1

\Vhat is claimed as new is 1. In a machine of the class described, a revolubledrum ope'n at' one end, a roller bearing for said open end, a universal joint support for the other end and a trunnioned yoke in which said bearings are supported and bytl hich the entire load is carried and a support for said yoke.

In a machinepf' the class described, a revoluble drum open at one end, a roller bearing for said open end, a universal joint support for. the 'other'end, a trunnioned and by which the entire load is carried, a support for said yoke and means mounted in said yoke and intermediate said bearings for revolving the drum. f v

In a machine of the class. described, a revoluble drum open atone e'nd,roller supports for said openend, ayoke, a support therefor, a universal. joint upon which the other end is supported, and trunnions projecting from said front and rear bearings.

4'. In a machine of therefor, universal jointupon which the other end is supported, trunnions projecting from said yoke intermediatethe front and rear bearings, and a driving shaft extend ing through one of said trunnions.

v 5. In a machine of the class described, a

olubly a universal joint support for one end of sa d drum, -a

mounted, corner brackets in said frame, rollers carried by said brackets and engagmeans intermediate the frontand rear bearings of the drum .for rotating the same.

6. In a cement mixer, a drum, a: yoke mounted on trunnions and in which said drum is supported, a support for. said trun nions, roller bearings for i the drum. a universal other end. means for revolving the drum, and vanes; upon the interior of the drum having reverse bends adjacent theirends.

. T. In a machine of the class described, a yoke, a drum mounted intermediate its ends on trunnions in .said yoke and having a stem at one end terminatingin va'ball resting in a bearingin said said yoke and a removable cap having a lug extending same.

tures, in presence of two witnesses.

- IVILLIAM A. COOK, JAMES DUSHANE. IVitnesses:

Enw. F. DUFAIL,

HARRY G. ScHock.

yoke in which said bearings are supportedyoke intermediate the the class described, a: revoluble drum, open at one end, roller. sup ports for said open end, a yoke, a support.

ing the drum, a support for said. yoke and the front end of. oint support for the I yoke, a support for yoke. mounted on trunnions, a dr'um rev? mounted and supported by the yoke,

frame carried by the yokeand .111 Wl1l0l1 said universal oint support 1s.

over said stem to protect the In testimony whereof'we aflix our signa- 

